Ad-mda7 inhibits growth of ovarian tumor xenografts in vivo. Subcutaneous ovarian tumors formed after injection of MDAH2774 cells were treated with PBS, Ad-luc, or Ad-mda7 and measured tumor growth using calipers. A significant inhibition of tumor growth was observed in Ad-mda7-treated tumors but not in PBS-treated or Ad-luc-treated tumors. The arrows indicate when treatment was administered. *Significance.